<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=2">
<meta name="theme-color" content="#222">
<meta name="generator" content="Hexo 5.4.0">
  <link rel="apple-touch-icon" sizes="180x180" href="/greenwood.gitee.io/images/apple-touch-icon-next.png">
  <link rel="icon" type="image/png" sizes="32x32" href="/greenwood.gitee.io/images/favicon-32x32-next.png">
  <link rel="icon" type="image/png" sizes="16x16" href="/greenwood.gitee.io/images/favicon-16x16-next.png">
  <link rel="mask-icon" href="/greenwood.gitee.io/images/logo.svg" color="#222">

<link rel="stylesheet" href="/greenwood.gitee.io/css/main.css">


<link rel="stylesheet" href="/greenwood.gitee.io/lib/font-awesome/css/all.min.css">

<script id="hexo-configurations">
    var NexT = window.NexT || {};
    var CONFIG = {"hostname":"gitee.com","root":"/greenwood.gitee.io/","scheme":"Pisces","version":"7.8.0","exturl":false,"sidebar":{"position":"left","display":"post","padding":18,"offset":12,"onmobile":false},"copycode":{"enable":false,"show_result":false,"style":null},"back2top":{"enable":true,"sidebar":false,"scrollpercent":false},"bookmark":{"enable":false,"color":"#222","save":"auto"},"fancybox":false,"mediumzoom":false,"lazyload":false,"pangu":false,"comments":{"style":"tabs","active":null,"storage":true,"lazyload":false,"nav":null},"algolia":{"hits":{"per_page":10},"labels":{"input_placeholder":"Search for Posts","hits_empty":"We didn't find any results for the search: ${query}","hits_stats":"${hits} results found in ${time} ms"}},"localsearch":{"enable":false,"trigger":"auto","top_n_per_article":1,"unescape":false,"preload":false},"motion":{"enable":true,"async":false,"transition":{"post_block":"fadeIn","post_header":"slideDownIn","post_body":"slideDownIn","coll_header":"slideLeftIn","sidebar":"slideUpIn"}}};
  </script>

  <meta name="description" content="设计模式的七大软件架构设计原则">
<meta property="og:type" content="article">
<meta property="og:title" content="JAVA设计模式第一章">
<meta property="og:url" content="https://gitee.com/greenwood-drgon/greenwood.gitee.io/2021/09/29/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F-%E4%B8%83%E5%A4%A7%E8%BD%AF%E4%BB%B6%E8%AE%BE%E8%AE%A1%E5%8E%9F%E5%88%99/index.html">
<meta property="og:site_name" content="我看刑">
<meta property="og:description" content="设计模式的七大软件架构设计原则">
<meta property="og:locale" content="zh_CN">
<meta property="article:published_time" content="2021-09-29T02:52:03.325Z">
<meta property="article:modified_time" content="2021-09-29T03:06:43.185Z">
<meta property="article:author" content="Dybala">
<meta property="article:tag" content="JAVA">
<meta property="article:tag" content="设计模式">
<meta property="article:tag" content="设计原则">
<meta name="twitter:card" content="summary">

<link rel="canonical" href="https://gitee.com/greenwood-drgon/greenwood.gitee.io/2021/09/29/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F-%E4%B8%83%E5%A4%A7%E8%BD%AF%E4%BB%B6%E8%AE%BE%E8%AE%A1%E5%8E%9F%E5%88%99/">


<script id="page-configurations">
  // https://hexo.io/docs/variables.html
  CONFIG.page = {
    sidebar: "",
    isHome : false,
    isPost : true,
    lang   : 'zh-CN'
  };
</script>

  <title>JAVA设计模式第一章 | 我看刑</title>
  






  <noscript>
  <style>
  .use-motion .brand,
  .use-motion .menu-item,
  .sidebar-inner,
  .use-motion .post-block,
  .use-motion .pagination,
  .use-motion .comments,
  .use-motion .post-header,
  .use-motion .post-body,
  .use-motion .collection-header { opacity: initial; }

  .use-motion .site-title,
  .use-motion .site-subtitle {
    opacity: initial;
    top: initial;
  }

  .use-motion .logo-line-before i { left: initial; }
  .use-motion .logo-line-after i { right: initial; }
  </style>
</noscript>

</head>

<body itemscope itemtype="http://schema.org/WebPage">
  <div class="container use-motion">
    <div class="headband"></div>

    <header class="header" itemscope itemtype="http://schema.org/WPHeader">
      <div class="header-inner"><div class="site-brand-container">
  <div class="site-nav-toggle">
    <div class="toggle" aria-label="切换导航栏">
      <span class="toggle-line toggle-line-first"></span>
      <span class="toggle-line toggle-line-middle"></span>
      <span class="toggle-line toggle-line-last"></span>
    </div>
  </div>

  <div class="site-meta">

    <a href="/greenwood.gitee.io/" class="brand" rel="start">
      <span class="logo-line-before"><i></i></span>
      <h1 class="site-title">我看刑</h1>
      <span class="logo-line-after"><i></i></span>
    </a>
  </div>

  <div class="site-nav-right">
    <div class="toggle popup-trigger">
    </div>
  </div>
</div>




<nav class="site-nav">
  <ul id="menu" class="main-menu menu">
        <li class="menu-item menu-item-home">

    <a href="/greenwood.gitee.io/" rel="section"><i class="fa fa-home fa-fw"></i>首页</a>

  </li>
        <li class="menu-item menu-item-tags">

    <a href="/greenwood.gitee.io/tags/" rel="section"><i class="fa fa-tags fa-fw"></i>标签</a>

  </li>
        <li class="menu-item menu-item-categories">

    <a href="/greenwood.gitee.io/categories/" rel="section"><i class="fa fa-th fa-fw"></i>分类</a>

  </li>
        <li class="menu-item menu-item-archives">

    <a href="/greenwood.gitee.io/archives/" rel="section"><i class="fa fa-archive fa-fw"></i>归档</a>

  </li>
        <li class="menu-item menu-item-commonweal">

    <a href="/greenwood.gitee.io/404/" rel="section"><i class="fa fa-heartbeat fa-fw"></i>公益 404</a>

  </li>
  </ul>
</nav>




</div>
    </header>

    
  <div class="back-to-top">
    <i class="fa fa-arrow-up"></i>
    <span>0%</span>
  </div>


    <main class="main">
      <div class="main-inner">
        <div class="content-wrap">
          

          <div class="content post posts-expand">
            

    
  
  
  <article itemscope itemtype="http://schema.org/Article" class="post-block" lang="zh-CN">
    <link itemprop="mainEntityOfPage" href="https://gitee.com/greenwood-drgon/greenwood.gitee.io/2021/09/29/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F-%E4%B8%83%E5%A4%A7%E8%BD%AF%E4%BB%B6%E8%AE%BE%E8%AE%A1%E5%8E%9F%E5%88%99/">

    <span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
      <meta itemprop="image" content="/greenwood.gitee.io/images/avatar.gif">
      <meta itemprop="name" content="Dybala">
      <meta itemprop="description" content="日子越来越有判头了">
    </span>

    <span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
      <meta itemprop="name" content="我看刑">
    </span>
      <header class="post-header">
        <h1 class="post-title" itemprop="name headline">
          JAVA设计模式第一章
        </h1>

        <div class="post-meta">
            <span class="post-meta-item">
              <span class="post-meta-item-icon">
                <i class="far fa-calendar"></i>
              </span>
              <span class="post-meta-item-text">发表于</span>
              

              <time title="创建时间：2021-09-29 10:52:03 / 修改时间：11:06:43" itemprop="dateCreated datePublished" datetime="2021-09-29T10:52:03+08:00">2021-09-29</time>
            </span>
            <span class="post-meta-item">
              <span class="post-meta-item-icon">
                <i class="far fa-folder"></i>
              </span>
              <span class="post-meta-item-text">分类于</span>
                <span itemprop="about" itemscope itemtype="http://schema.org/Thing">
                  <a href="/greenwood.gitee.io/categories/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F/" itemprop="url" rel="index"><span itemprop="name">设计模式</span></a>
                </span>
            </span>

          

        </div>
      </header>

    
    
    
    <div class="post-body" itemprop="articleBody">

      
        <h1 id="设计模式的七大软件架构设计原则"><a href="#设计模式的七大软件架构设计原则" class="headerlink" title="设计模式的七大软件架构设计原则"></a>设计模式的七大软件架构设计原则</h1><span id="more"></span>
<h2 id="1-开闭原则"><a href="#1-开闭原则" class="headerlink" title="1. 开闭原则"></a>1. 开闭原则</h2><h3 id="1-1-概念："><a href="#1-1-概念：" class="headerlink" title="1.1 概念："></a>1.1 概念：</h3><figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br></pre></td><td class="code"><pre><span class="line">一个软件实体，应该对扩展开放，对修改关闭</span><br><span class="line">核心：面向对象原则</span><br></pre></td></tr></table></figure>
<h3 id="1-2-优缺点："><a href="#1-2-优缺点：" class="headerlink" title="1.2 优缺点："></a>1.2 优缺点：</h3><p>优点：提高软件系统的可复用性以及维护性<br>缺点：容易引发类爆炸</p>
<h2 id="2-依赖倒置原则"><a href="#2-依赖倒置原则" class="headerlink" title="2. 依赖倒置原则"></a>2. 依赖倒置原则</h2><h3 id="1-2-概念："><a href="#1-2-概念：" class="headerlink" title="1.2 概念："></a>1.2 概念：</h3><p>高层模块不依靠低层模块，两者都依赖其抽象</p>
<h2 id="3-单一职责原则"><a href="#3-单一职责原则" class="headerlink" title="3. 单一职责原则"></a>3. 单一职责原则</h2><p>一个类干一件事</p>
<h2 id="4-接口隔离原则"><a href="#4-接口隔离原则" class="headerlink" title="4. 接口隔离原则"></a>4. 接口隔离原则</h2><p>一个接口干一件事</p>
<h2 id="5-迪米特原则"><a href="#5-迪米特原则" class="headerlink" title="5. 迪米特原则"></a>5. 迪米特原则</h2><p>一个对象应该对其他对象保持最少的了解</p>
<h2 id="6-里氏替换原则"><a href="#6-里氏替换原则" class="headerlink" title="6. 里氏替换原则"></a>6. 里氏替换原则</h2><p>子类继承父类，拓展功能但不修改功能</p>

    </div>

    
    
    

      <footer class="post-footer">
          <div class="post-tags">
              <a href="/greenwood.gitee.io/tags/JAVA/" rel="tag"># JAVA</a>
              <a href="/greenwood.gitee.io/tags/%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F/" rel="tag"># 设计模式</a>
              <a href="/greenwood.gitee.io/tags/%E8%AE%BE%E8%AE%A1%E5%8E%9F%E5%88%99/" rel="tag"># 设计原则</a>
          </div>

        


        
    <div class="post-nav">
      <div class="post-nav-item">
    <a href="/greenwood.gitee.io/2021/09/28/%E5%A4%9A%E7%BA%BF%E7%A8%8Bchap1/" rel="prev" title="JAVA多线程第一章">
      <i class="fa fa-chevron-left"></i> JAVA多线程第一章
    </a></div>
      <div class="post-nav-item">
    <a href="/greenwood.gitee.io/2021/09/29/Spring%20in%20action1/" rel="next" title="Spring in action 装配篇">
      Spring in action 装配篇 <i class="fa fa-chevron-right"></i>
    </a></div>
    </div>
      </footer>
    
  </article>
  
  
  



          </div>
          

<script>
  window.addEventListener('tabs:register', () => {
    let { activeClass } = CONFIG.comments;
    if (CONFIG.comments.storage) {
      activeClass = localStorage.getItem('comments_active') || activeClass;
    }
    if (activeClass) {
      let activeTab = document.querySelector(`a[href="#comment-${activeClass}"]`);
      if (activeTab) {
        activeTab.click();
      }
    }
  });
  if (CONFIG.comments.storage) {
    window.addEventListener('tabs:click', event => {
      if (!event.target.matches('.tabs-comment .tab-content .tab-pane')) return;
      let commentClass = event.target.classList[1];
      localStorage.setItem('comments_active', commentClass);
    });
  }
</script>

        </div>
          
  
  <div class="toggle sidebar-toggle">
    <span class="toggle-line toggle-line-first"></span>
    <span class="toggle-line toggle-line-middle"></span>
    <span class="toggle-line toggle-line-last"></span>
  </div>

  <aside class="sidebar">
    <div class="sidebar-inner">

      <ul class="sidebar-nav motion-element">
        <li class="sidebar-nav-toc">
          文章目录
        </li>
        <li class="sidebar-nav-overview">
          站点概览
        </li>
      </ul>

      <!--noindex-->
      <div class="post-toc-wrap sidebar-panel">
          <div class="post-toc motion-element"><ol class="nav"><li class="nav-item nav-level-1"><a class="nav-link" href="#%E8%AE%BE%E8%AE%A1%E6%A8%A1%E5%BC%8F%E7%9A%84%E4%B8%83%E5%A4%A7%E8%BD%AF%E4%BB%B6%E6%9E%B6%E6%9E%84%E8%AE%BE%E8%AE%A1%E5%8E%9F%E5%88%99"><span class="nav-number">1.</span> <span class="nav-text">设计模式的七大软件架构设计原则</span></a><ol class="nav-child"><li class="nav-item nav-level-2"><a class="nav-link" href="#1-%E5%BC%80%E9%97%AD%E5%8E%9F%E5%88%99"><span class="nav-number">1.1.</span> <span class="nav-text">1. 开闭原则</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#1-1-%E6%A6%82%E5%BF%B5%EF%BC%9A"><span class="nav-number">1.1.1.</span> <span class="nav-text">1.1 概念：</span></a></li><li class="nav-item nav-level-3"><a class="nav-link" href="#1-2-%E4%BC%98%E7%BC%BA%E7%82%B9%EF%BC%9A"><span class="nav-number">1.1.2.</span> <span class="nav-text">1.2 优缺点：</span></a></li></ol></li><li class="nav-item nav-level-2"><a class="nav-link" href="#2-%E4%BE%9D%E8%B5%96%E5%80%92%E7%BD%AE%E5%8E%9F%E5%88%99"><span class="nav-number">1.2.</span> <span class="nav-text">2. 依赖倒置原则</span></a><ol class="nav-child"><li class="nav-item nav-level-3"><a class="nav-link" href="#1-2-%E6%A6%82%E5%BF%B5%EF%BC%9A"><span class="nav-number">1.2.1.</span> <span class="nav-text">1.2 概念：</span></a></li></ol></li><li class="nav-item nav-level-2"><a class="nav-link" href="#3-%E5%8D%95%E4%B8%80%E8%81%8C%E8%B4%A3%E5%8E%9F%E5%88%99"><span class="nav-number">1.3.</span> <span class="nav-text">3. 单一职责原则</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#4-%E6%8E%A5%E5%8F%A3%E9%9A%94%E7%A6%BB%E5%8E%9F%E5%88%99"><span class="nav-number">1.4.</span> <span class="nav-text">4. 接口隔离原则</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#5-%E8%BF%AA%E7%B1%B3%E7%89%B9%E5%8E%9F%E5%88%99"><span class="nav-number">1.5.</span> <span class="nav-text">5. 迪米特原则</span></a></li><li class="nav-item nav-level-2"><a class="nav-link" href="#6-%E9%87%8C%E6%B0%8F%E6%9B%BF%E6%8D%A2%E5%8E%9F%E5%88%99"><span class="nav-number">1.6.</span> <span class="nav-text">6. 里氏替换原则</span></a></li></ol></li></ol></div>
      </div>
      <!--/noindex-->

      <div class="site-overview-wrap sidebar-panel">
        <div class="site-author motion-element" itemprop="author" itemscope itemtype="http://schema.org/Person">
  <p class="site-author-name" itemprop="name">Dybala</p>
  <div class="site-description" itemprop="description">日子越来越有判头了</div>
</div>
<div class="site-state-wrap motion-element">
  <nav class="site-state">
      <div class="site-state-item site-state-posts">
          <a href="/greenwood.gitee.io/archives/">
        
          <span class="site-state-item-count">22</span>
          <span class="site-state-item-name">日志</span>
        </a>
      </div>
      <div class="site-state-item site-state-categories">
            <a href="/greenwood.gitee.io/categories/">
          
        <span class="site-state-item-count">11</span>
        <span class="site-state-item-name">分类</span></a>
      </div>
      <div class="site-state-item site-state-tags">
            <a href="/greenwood.gitee.io/tags/">
          
        <span class="site-state-item-count">22</span>
        <span class="site-state-item-name">标签</span></a>
      </div>
  </nav>
</div>



      </div>

    </div>
  </aside>
  <div id="sidebar-dimmer"></div>


      </div>
    </main>

    <footer class="footer">
      <div class="footer-inner">
        

        

<div class="copyright">
  
  &copy; 
  <span itemprop="copyrightYear">2021</span>
  <span class="with-love">
    <i class="fa fa-heart"></i>
  </span>
  <span class="author" itemprop="copyrightHolder">Dybala</span>
</div>
  <div class="powered-by">由 <a href="https://hexo.io/" class="theme-link" rel="noopener" target="_blank">Hexo</a> & <a href="https://pisces.theme-next.org/" class="theme-link" rel="noopener" target="_blank">NexT.Pisces</a> 强力驱动
  </div>

        








      </div>
    </footer>
  </div>

  
  <script src="/greenwood.gitee.io/lib/anime.min.js"></script>
  <script src="/greenwood.gitee.io/lib/velocity/velocity.min.js"></script>
  <script src="/greenwood.gitee.io/lib/velocity/velocity.ui.min.js"></script>

<script src="/greenwood.gitee.io/js/utils.js"></script>

<script src="/greenwood.gitee.io/js/motion.js"></script>


<script src="/greenwood.gitee.io/js/schemes/pisces.js"></script>


<script src="/greenwood.gitee.io/js/next-boot.js"></script>




  















  

  

  

</body>
</html>
